From the Richmond Dispatch, 7/7/1862, p. 2, c. 2

Hessians. – Only thirty prisoners of war
arrived here on yesterday from below, though seemingly reliable
authority put the number en route hither in squads of four and five
hundred at about 4,000 men. Some of these latter were said to be not
a great way below the city, and if this be so, they may be expected
to arrive to-day.